Run: 2026-09-23-01M37PMMMW4RQF1C7CM65JJM8X

Run Details

Duration:
19.8s
Cost:
$0.038980
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
100.00% Dialogue to Total Word Ratio (details)
99.9919% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.

Model response

AI
"Right," said Molly, unrolling the map. "The Henderson kid turns seven Saturday. Forty guests. Forty presents." "Forty presents," Bill whispered. "That's more than my last three birthdays combined." "You've never had a birthday present." "Exactly. This is personal." "Focus. We go in as entertainment. I'm the magician. You're the clown." "Why am I always the clown?" "Because you already own the shoes." "Those are orthopedic." "They're red and size nineteen, Bill." "Fine. What's my act?" "Balloon animals. While the kids are distracted, I make the presents disappear." "Actually disappear?" "Into the van." "And if they notice?" "They're seven. They can't count past the cake." "What if there's a bouncy castle?" "Why would that matter?" "I just want to know if there's a bouncy castle." "There's a bouncy castle." "Then I'm going to need twenty minutes unaccounted for." "Bill." "Ten minutes." "Can you even make balloon animals?" "I can make a snake." "That's just a balloon." "It's a very convincing snake." "What about the mums?" "I'll charm them." "You'll terrify them." "Same thing, basically." Molly sighed and folded the map. "We leave at noon." "Can we stay for cake?" "Absolutely not." "Party bags?" Molly stared until Bill looked away.
created_at"2026-09-23T17:57:26.828Z" 9/23/2026, 5:57:26 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6060
moderation_latency(null)
generation_time19723
tokens_prompt75
tokens_completion479
native_tokens_prompt95
native_tokens_completion1930
native_tokens_completion_images(null)
native_tokens_reasoning1429
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.03898
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186246-c8V0f6ovSXWnP1lCFZqc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186246-okKZpAMprzhTKk7EdH1w"
upstream_id"msg_011CfLoaDMrwi1ihRFZLo8vx"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLoaDMrwi1ihRFZLo8vx"
is_byokfalse
latency1744
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.03898
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words198
100.00% Dialogue to Total Word Ratio
Ratio: 90.40%, Deviation: 0.40%
neededCleanfalse
wordsTotal198
wordsDialogue179
99.9919%